Nut-lock



(No Model.)

J. DIGKASON.

NUT LOOK. No. 586,546. Patented July 20,1897.

I 7; fi d UNITED STATES PATENT OFFICE.

JONATHAN DIOKASON, OF AGOSTA, OHIO.

NUT-LOCK.

SPECIFICATION forming part Of Letters Patent N0. 586,546, dated July 20,1897.

Application filed September 24, 1896. Serial No. 606,814. No model.)

To all whom it may concern:

Be it known that I, JONATHAN DICKASON, of Agosta, in the county ofMarion and State of Ohio, have invented certain new and usefulImprovements in Nut-Locks; and I do hereby declare that the following isa full, clear, and exact description of the invention, which will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon which form part of thisspecification.

This invention relates to certain improvements in nut-locks.

The object of the invention is to provide a nut-lock so constructed of aminimum number of parts and capable of quick and accurate operation andone in which the locking means is so arranged that the nut and washercan be removed at will and easily locked against rotation when desired.

The invention consists in certain novel features of construction and incombinations and arrangements of parts, more fully describedhereinafter, and particularly pointed out in the claims.

Referring to the accompanying drawings, Figure 1 is a top plan viewshowing my invention in a locked position, a round washer in thisinstance being employed. Fig. 2 is a sectional view showing the lockingdevice in side elevation. Fig. 3 is a front elevation; andFig. at is aninverted view of washer of Figs. 1, 2, and 3.

Like letters of reference mark the same parts throughout the differentviews.

a indicates a beam or rail having the usual bolt-hole for the receptionof the bolt. Above this bolt-hole is a transverse groove 1), anddirectly below the bolt-hole is a notched or cut-away portion 0, thepurpose of which will be shortly described.

(Z indicates a washer made of any desirable shape, this washer beingprovided with the cut-away portions on its upper outer edges and beingprovided with the transverse slot or groove 6, extending entirely acrossthe under side of the upper portion of said washer.

f is a teat or projection preferably punched out from the face of thewasher, this teat or projecting part entering the notched or cutawayportion 0 of'the rail when the washer is placed in position.

f represents the locking-key, formed of any desirable material, and thisyoke or key is so formed as to have the horizontal base 9 and theupwardly-extending arms h h, as shown. This locking key or yoke isinserted between the washer and the rail or beam so as to rest in thegroove 7) of the rail and the slot or groove 6 of the washer and beeasily mov able therein.

In operation after the bolt has been passed through the beam or rail thelocking key or yoke is placed in position and the washer placed on thebolt. The not is then screwed home, and after the several parts havebeen sufficiently tightened the upwardly-extended arms h h are turneddown against the sides of the nut, thereby locking the washer and theseveral other parts in the desired position against rotation. It shouldbe noticed that the washer will not turn, as the arms h 71 when turneddown enter the cutaway or notched portions of the washer at the upperportion thereof.

Certain other slight changes might be made in the form and constructionof the parts herein described without departing fromthe spirit and scopeof myinvention. Henceldo not Wish to confine myself to the exact construction herein set forth.

WVh-at I claim is 1. A nut-lock consisting of the rail or beam, a washerhaving recesses or cut-away portions in the upper periphery thereof, agroove in the inner surface of said washer, a locking key adapted to fitin said groove and the arms of said key adapted to turn out and bearagainst either side of the nut, locking the same as shown and described.

2. A nut-lock comprising the washer, a bolt-hole therein, a teat ordepression formed in the edge of said bolt-hole, a groove in the innersurface of said washer, a key adapted to rest in said groove and havingarms adapted to turn outwardly on either side of the nut for the purposeset forth.

3. In a nut-lock the combination of a Washer, the recesses in the upperperiphery thereof, a groove in its inner surface and akey loosely heldin said groove and having arms adapted to turn outwardly and bearagainst either 10 side of the nut substantially as described.

In testimony that I claim the foregoing as my own I aifix my signaturein presence of two Witnesses.

JONATHAN DICKASON.

\Vitnesses:

C. F. WILsoN, E. F. GRIM.

